OFFSET
1,4
COMMENTS
Row sums give A000142, n >= 1.
LINKS
FindStat - Combinatorial Statistic Finder, The "bounce" of a permutation.
EXAMPLE
Triangle begins:
1,
1,1,
2,2,1,1,
6,6,4,4,2,1,1,
24,24,18,18,14,8,6,4,2,1,1,
120,120,96,96,84,66,46,30,22,16,10,6,4,2,1,1,
...
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Christian Stump, Oct 19 2015
STATUS
approved